WADS on 4.3

Hia Folks, my wii is at version 4.3 i did not softmod it myself, the store did, around 6 months ago, i can play isos and stuff perfectly, but i wanted to try .wad games too, and ive DLed Wad manager, and putted my pokemon ranch.wad in the /wad map, but when im running WAD manager i get an error.=
I take IOS249, and nand emulator device <disabled> and select source device <wii sd slot> then i get=
Mounting device, please wait...OK!
Retrieving file list...ERROR! (ret-1)

and then i can't get any further, i've read a little about this and i read that i should downgrade which also failed i got "Could not set the revision to 0. Downgrade failed, maybe you should update downgrader" I have no idea what IOS i got or don't but i got cIOS 222 when i bought the game which i guess is something for uLoader, i got cIOS38r17 in my memory card too, dont know if u should use it or not? Im really confused and dont know where to start, if a nice soul would help me id appreciate it thanks in advancde!